Files
sigma-rules/rules/windows/privilege_escalation_create_process_as_different_user.toml
T

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2.4 KiB
TOML

[metadata]
creation_date = "2022/08/30"
integration = ["system", "windows"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/10/23"
[rule]
author = ["Elastic"]
description = """
Identifies process creation with alternate credentials. Adversaries may create a new process with a different token to
escalate privileges and bypass access controls.
"""
from = "now-9m"
index = ["winlogbeat-*", "logs-system.*", "logs-windows.*"]
language = "eql"
license = "Elastic License v2"
name = "Process Creation via Secondary Logon"
references = ["https://attack.mitre.org/techniques/T1134/002/"]
risk_score = 47
rule_id = "42eeee3d-947f-46d3-a14d-7036b962c266"
setup = """
Audit events 4624 and 4688 are needed to trigger this rule.
If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
`event.ingested` to @timestamp.
For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
"""
severity = "medium"
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation"]
type = "eql"
query = '''
sequence by winlog.computer_name with maxspan=1m
[authentication where event.action:"logged-in" and
event.outcome == "success" and user.id : ("S-1-5-21-*", "S-1-12-1-*") and
/* seclogon service */
process.name == "svchost.exe" and
winlog.event_data.LogonProcessName : "seclogo*" and source.ip == "::1" ] by winlog.event_data.TargetLogonId
[process where event.type == "start"] by winlog.event_data.TargetLogonId
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1134"
name = "Access Token Manipulation"
reference = "https://attack.mitre.org/techniques/T1134/"
[[rule.threat.technique.subtechnique]]
id = "T1134.002"
name = "Create Process with Token"
reference = "https://attack.mitre.org/techniques/T1134/002/"
[[rule.threat.technique.subtechnique]]
id = "T1134.003"
name = "Make and Impersonate Token"
reference = "https://attack.mitre.org/techniques/T1134/003/"
[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"